Add oil and sausage to a large pot. Cook till brown. Drain off any excess fat and put sausage to the side.
1 tablespoon oil, 1 pound sausage
In the same pot add butter scrapping up any browned bits of leftover sausage. Add onion, garlic and celery. Cook on medium heat until veggies are tender and onion is translucent.
1 onion, 2 teaspoons minced garlic, ⅓ cup butter, ¾ cup celery
Remove the pot from heat. Add flour, salt and pepper to the veggies. Stir till the flour is absorbed.
3 tablespoons flour, 2 teaspoons pepper, 1 teaspoon salt
Put the pot back on heated stove. Add broth and potatoes to pot. Bring pot to a gentle boil on medium-high heat for 13 to 15 minutes until potatoes are tender.
8 cups chicken broth, 6 medium sized potatoes
Add milk, sour cream, cheese, cooked sausage and corn to the pot. Stir soup until cheese is melted.
1 cup milk, ½ cup sour cream, 1 cup sharp cheddar cheese, 1 can corn
Add additional salt and pepper to taste. Garnish with fresh parsley and enjoy!